The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 26, 1982
Filed:
Feb. 19, 1980
Applicant:
Inventors:
Hideo Segawa, Tokyo, JP;
Jiro Koyama, Suita, JP;
Hiroshi Nishihara, Suita, JP;
Masamitsu Masuda, Toyonaka, JP;
Assignee:
Ricoh Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350 9615 ; 350 9614 ; 350 9629 ;
Abstract
An optical control device having at least two optical fibers arranged extremely adjacent to each other over a certain distance so that the optical fibers are optically coupled to each other. Among optical waves propagating in one of the optical fibers, a particular optical wave which is selected by the propagation constants of the two optical fibers and the propagation constant of an ultrasonic applied to the one optical fiber is transmitted to the other optical fiber.